Wednesday, January 27, 2021

Ontario Nurses demand N95 respirators "at minimum" because masks don't work on aerosols

Kudos to the leader of Ontario's official opposition, NDP leader Andrea Horwarth, for bringing to my attention an open letter written by the Ontario Nurses Association to Premier Doug Ford.  

The letter calls on the province to mandate precautions for airborne transmission of SARS-Cov-2.  Specifically it calls for the province to procure and issue PPE that can prevent infection by airbone aerosols which can hang in the air for hours and even get into venilations systems.  

Airborne aerosols have long been established as a mode of transmission, and obviously surgical and cloth masks aren't going to keep out something as small as an aerosol. The fact that nurses and other health care workers continue to be infected "at record rates", speaks to the fact that surgical and cloth masks are useless against aerosols.

Here is the letter dated Janurary 25th, 2021:   


I've written about this many times....

Thinking that sucking air through a piece of cloth or even a surgical type mask????   That it's going to stop an aerosol!!!  That is akin to thinking a wall will stop illegal immigration.  But some people like a fantasy if it plays to their fears and biases.  

Just look at the mask a painter wears sometime, tightly sealed with filter type respirators.  Those painter masks are to keep out paint droplets, which are exponentially larger than aerosols.  

If you want to see how a proper mask is tested, here's a video a friend shared with me.


 

But hey, if you think some piece of cloth is going to keep an aerosol out, then you probably think Iraq has weapons of mass destruction hiding someplace, or that Trump is a super honest and decent guy.  

Or follow Dr. Fauci's advice.  If one loose fitting piece of dirty cloth won't keep an aerosol out, then try two.